Chromium oxides and hydroxides — HTS 2819
Chromium oxides and hydroxides
Chapter 28 › Heading 2819
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 2819 is a four-digit product category for chromium oxides and chromium hydroxides. It groups chemical products made by combining chromium with oxygen or containing chromium hydroxide, rather than identifying one exact product, grade, or use.
To reach the correct eight-digit HTSUS code, start with the product’s chemical identity and then read the subheadings and statistical breakout lines under heading 2819. The controlling distinction may involve the specific compound, form, purity, or another description stated in the tariff schedule. The product’s trade name or intended use alone is usually not enough; classification may require the safety data sheet (SDS), specification sheet, formula, and supporting technical information.
What to check
- Confirm the exact chemical name, formula, CAS Registry Number, and whether the product is an oxide or hydroxide.
- Read every indented subheading and eight-digit statistical line under heading 2819; do not stop at the four-digit heading.
- Compare the tariff wording with the product’s actual composition, concentration, physical form, and grade.
- Check whether the product is a mixture, solution, preparation, or formulated product that may require classification outside this heading.
- Request a binding classification ruling or consult a qualified customs broker when the specifications do not clearly match one eight-digit line.
HTS heading 2819 summary
Chromium oxides and hydroxides is a 4-digit product category containing 2 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Product codes & duty rates
👇 Each row is a specific product code — click a blue code to open its full page with exact duty rates by country, the rate-history chart, and a duty calculator. 👉
| Code | Description | General (MFN) | Special | Column 2 |
|---|---|---|---|---|
| 2819.10.00.00 👉 | Chromium trioxide | 3.7% | Free | 25% |
| 2819.90.00.00 👉 | Other | 3.7% | Free | 25% |
"Special" shows the free-trade-agreement rate; open a code to see exactly which countries qualify.
Common questions
What products fall under HTS heading 2819?
Chromium oxides and hydroxides. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.